Can-seaming machine.



No. 800,425. PATENTED SEPT. 26, 1905. 0. s. BEYER.

\\ CAN SEAMING MACHINE. v

' ARPLIOATIO'N FILED JUNE 4,1902.

4 SHEBTS-SHEET 2.

FIG. 2.

INVENTOR: WITNESSES: 4 "131% I By A Home 51s,

PNERS. WASMNGYON, n c

PATENTED SEPT. 26, 1905.

O.S.BE YER. CAN SEAMING MACHINE.

APPLICATION FILED JUNE 14,1902.-

4 SHEETS-SHEET 3.

INVENTOR: 0% f. 2f

By Af/omeys,

WITNESSES: M

No. 800,425. PATENTED SEPT. 26, 1905.

0; s. BEYER.

CAN SEAMING' MACHINE.

APPLIOATION FILED JUNE 14,1902;

4 SHEETS-SHEET 4.

INVENTOR;

; WITNESSES-z Q14 4% I By Alzomeys, QR/1 WGW Q UNITED STATES" PATENTOFFICE.

OTTO S. BEYER, OF OAR STADTQNEW JERSEY, ASSIeNoR To E. W. BLISS COMPANY,OF BROOKLYN, NEW Y RK, A CORPORATION OF. WEST VIRGINIA.

CAN-SEAMING MACHINE.

Patented. Sept. 26, 1905.

Application filed June 14.1902. Serial No. 111,647.

To all whom it mag concern:

Be it known that I, OTTO S. BEYER, a citizen of the United States,residing at Garl'stadt, in the county-of Bergen and State of New Jersey,have invented certain new and useful Improvements in :(Jan-SeamingMachines, of

, which the following is a specification.

' elevation thereof.

This invention relates to machines for making the seams for joining theheads or ends of cans to the bodies thereof.

The machine is especially adapted for the double-seaming of the heads ofround or cylindrical cans.

Figure 1 of the accompanying drawings is a side elevation of themachine. Fig. 2 is afront Fig. 3 is a horizontal section on the line 3 3of Fig. 1. Fig. 4 isa fragmentary sectional elevation viewed from thefront. Fig. 5 is a fragmentary sectional elevation showing theseamer-cam and connections. Fig- 6 is a fragmentary sectional elevationviewed from the rear, showing the vclutchlever.

clutch-operating mechanism, the view being in section on the line 6 6 inFig. 7. Fig. 7 is a fragmentary side elevation, partly broken away insection, showing'the clutch-operating mechanism. Fig. 8 is a verticalmid-section of part of Fig. 7. Fig. 9 is a plan of the Fig. 10 is anenlarged detail view.

The improved machine is of that character wherein the can-body havingits head placed upon it is transferred by hand orotherwise into positionon a rotatable disk or pad,which is thereupon elevated to bring thecan-head into engagement with a continuously and rapidly revolvingchuck, the disk and chuck together serving'as a clamp to hold the canduring the seaming operation. By the continued operation of themechanism a seamer, preferably in the form of a seaming-roll, isprotruded and causedto bear upon the flange of the cover to curlit'inwardly and down wardly beneath the flange of the can and to force bothflanges inwardly toward the canbody. I Thereupon a secondseamer, preferably also a seaming-roll, is caused to engage the can-head and acts toflatten and compress .of the disk or pad, whereupon the can is re thedoubleseam against the can-head, which is firmly supported by the chuck.After the two seam ers have receded the can-clamp opens to release thecan, preferably by the descent moved and replaced by another to beoperated on. The mechanism for operating the seamers and for controllingthe operation of the can-clamp is preferably started by the operator,who moves a treadle or other lever for that purpose, and after theseries of operations necessary to complete the head of one can theseparts preferably come to rest, althoughv the invention does not excludea continuous operation of these mechanisms. v

Referring .to the drawings, let A designate any suitable framework forsupporting the working parts. In the construction shown the frarneisprovided with hearings in which may turn a main shaft B, on which turnsloosely a pulley B, which is driven by a belt a from a smaller pulley aon a counter-shaft 0, located in any convenient manner, preferably abovethe machine, being shown as turning in hangersor bearings b 6 of anysuitable kind and driven by a belt on a pulley 0. Turn' ing loosely onthe shaft B is a double pulley D, which is driven by a belt'o from alarge pulley C on the counter-shaftO and which in turn drives through abelt (Z, passing over angle-pulleys e e, a pulley E, fixed on aver'ticalshaft E, having bearings in the frame A. The proportions are such thatthe pulley B is driven vat a low speed, while the vertical shaft E isdriven at a high speed. The pulley B partacting to engage any suitableclutch, as I will be presently described.

On the lower end of the shaft E is fixed a disk F, constituting thechuck forming the upper member of the clamp by which the can is heldduring the seaming operation.

The lower part of this clamp is a rotatable disk or pad Gr, which isswiveled on a vertically-movable slide H. sliding in a bearing. H on theframe.

The can isclamped by means of a treadle or other lever J shown aspivoted to the base at f and connected by a rod g to a lever K, pivotedat 79, the opposite arm of which is forked and engages at Z with flangeson or attached to the slide H, and preferably adjustable ver' ticallythereon by being-formed on a movable collar H, which can be set to anyheight on the slide H by means of a set-screw. It follows from thisconstruction that pressing down the treadle J forces up the slide H, sothat a can placed on the pad Gris pushed up until its head is clampedagainst the chuck F. To re- I lieve the operator of the necessity ofholding the treadle depressed in order to keep the cancl-amp properlyengaged upon the can during the seaming operation, I provide meanswhereby when the treadle is once depressed mechanism is brought intoaction for holding the clamp closed upon the can until the end of theoperation and then opening the clamp to release the can. or, in otherwords, for holding the slide H elevated and then mechanically loweringit at the proper time. To this end I provide upon the horizontal shaft Ba camdisk L, which has a notch 10, which in the position of rest (seeFig. 4) engages a roller 11, carried on the upper end of a sliding rodM, which is connected to the rear end of the lever K. The pressing downof the treadle J acts through a rod e' to operate a clutch P forengaging the pulley B to the shaft B. Thereupon the shaft B rotatesduring one revolution, carrying the cam L with it in the direction ofthe arrow, Fig. 4. As soon as this cam begins to revolve its notchpasses the roller 11, thereby preventing any return movement of thisroller or of the lever K, and hence preventing the descent of the slideH and the release of the can. Thus the cam L acts to hold the slide Helevated until the cam has executed one revolution, whereupon (theoperator having previously released the treadle) the roller 11 fallsback into the notch 10 and thereby through the connected parts lowersthe slide H and releases the can, this operation being completed just asthe shaft B is unclutched from the driving-pulley B and comes to rest.If the operator has failed to release the treadle, the shaft Bnevertheless stops, and when the treadle is released the roller 11 mayenter the notch 10 and permit the lowering of the pad G to release thecan.

The seam is turned by a seamer or seamers of any usual construction.Preferably I employ seaming-rolls S S preferably arranged on oppositesides of the can, as shown in Fig. 3. The seamers are caused togradually approach the can to turn and roll down the seam and then torecede therefrom. The seamer S first approaches the can to turn in theseam on the can-head in the usual manner, whereupon the seamer Sapproaches and rolls down the seam. The seamer S preferably recedesbefore the seamer S begins to act.

Each of the seamers S S is mounted upon .a carriage Q, the two carriagesQ Q being arranged to slide upon any suitable ways carried on the mainframe A. In the construction shown each carriage Q is formed as a slidearranged to move upon a transverse slideway Q. Upon the back of theslide Q is mounted a pin or roller Q which is engaged in a slot or forkin an arm R forming part of a lever B. The middle part of this lever Rconsists of a rock-shaft R, turning in bearings on the frame A, thisshaft having fixed on its rear end the upwardly-projecting arm R and onits front end a downwardlyprojecting arm R, carrying, preferably, anantifriction-roller R, which bears against the surface of a cam S, whichis fixed on the shaft B. A prolongation R' of the lever is engaged by aspring 8, which acts to pressthe roller 11* against the cam, andaccordingly to press the seamer-slide outward or away from the can. Thetwo levers R R are arranged on opposite sides of the same cam S, so thatone spring 8 serves for both. The cam S makes one revolution to theseaming of each can. It is engaged on diametrically opposite sides bythe rollers R R", and starting from the position shown in Fig. 5 itsprojecting portion acts first on the right-hand roller, thereby causingthe right-hand seamer S to approach the blank and turn in the flanges,which operations are performed during the first halfrevolution, afterwhich the cam projections engage the left-hand roller and force thelefthand seamer S in like manner toward the can being operated on, theright-hand seamer receding at or before the beginning of the approachingmovement of the left-hand seamer, which latter recedes toward the end ofthe complete revolution, thereby releasing the seamed can. The describedconstruction imparts movements to both seamers from the one cam S.

In order that the seamers may be set ontor in, and thereby adapted tocans of varying diameters, provision is made for adjusting the positionof the pin or roller Q, of each carriage Q relatively to such carriageor slide. To this end the carriage or slide Q, is made with a rear partQ which is adapted to slide upon the main portion, being adjustedthereon by a screw 12, engaging an arm C and fastened by screws 18. Byloosening the screws 13 and turning the screw 12 the slide Q may beadjusted to right or left to bring the seamer S or S to the adjustedposition, whereupon the screws 13 are retightened.

To render the seamers S S yielding, so as to allow for slight variationsin the thickness of the metal of the blank and enable them to yield inpassing over the side seam, they are mounted on their respectivecarriages Q, through the medium of a yieldingconnection consisting of alever 14, pivoted at 15 to an arm or plate 16, which is fastened againstthe face of the carriage or slide Q, the lover being pressed outwardlyby a stiff spring 17 and adjusted against the stress of this spring bymeans of nuts 18, screwing on a stud 19, projecting from-the plate 16.To enable the seamers to be adjusted vertically in order to bring theminto exact vertical coincidence with the seam to be formed, the plates16 are made vertically adjustable on the carriages Q. The carriage Q, isformed with a vertical rib 20 on its front face engaged by a groove inthe plate 16, so that by loosening the fastening-screws 21 the plate 16can be set slightly in dotted lines in Figs. 7 and 8, thereby freehigheror lower, the holes through which these screws pass being sufiicientlylarge to allow of the requisite motion, as shown in Fig. 10.

I will describe briefly the construction of one-revolution clutch forcoupling the shaft B to the pulley B. This clutch is in the main an oldand well-known construction of one-revolution clutch and may in carryingmy invention into practice be substituted by any other suitable clutchhaving equivalent capabilities. As best shown in Fig. 8, the shaft Bcarries a'collar B and is provided with a sliding bolt U, movable in akeyway in the shaft and through a recess in the collar, being pressednormally forward by an internal spring it and normally held back by areleasing lever or dog- V. (Shown in plan in Fig. 9.) When the lever Vis pulled down out of the notch in the bolt U, the latter is pressedforward by spring 71., and its end enters a recess U in the hub of therevolving pulley B, (there being one or more, usually three, of theserecesses,)so that it locks the pulley and shaft together, and the shaftis caused to turn with the pulley. At the end of one revolution thelever ,V, which has meanwhile been released, is reengaged by the notchin the bolt U, which latter slides against its inclined face h, Fig. 9,whereby the bolt U is withdrawn, thereby unclutching the shaft, which isstopped by the engagement ofthe bolt U with the lever V. The lever Vis-pulled down to engage the clutch by the pressing down of the treadleJ, with which it is connected through the me-. dium of a rod 01 and adetent mechanism. The upper end of the rod Z is formed with a slot 2',which engages a pin 1' on a lever j, which lever is acted onby a spring1' tending to press up the end carrying the pin To this pin is jointedthe lower end of a shell or cylinder is, in which is a plunger Z,connected by a stem Z to the lever V. A spring Z exerts a constantupward pressure on the'lever V. To ears on the shell 7c is pivoted ahook m, constituting a catch or latch, the hooked end of which entersthrough a slot in the shell and takes over the plunger Z. The book m isfixed on a shaft m, on which also is fixed an'arm m", to which isattached a spring miwhich causes the hook m to constantly tend to engageitself with. the plunger Z. On the shaft m is also fixed an arm n, whichprojects up along the collar B and is adapted to be struck by a pin orprojection 17. thereon, whereby to force out the hook m and cause it todisengage from the plunger Z.

The operation of the clutch mechanism is as follows: On pressing downthe treadle J motion is communicated to pull down the pin j, and with itthe shell 70, and through the hook m to pull down, also, the plunger Z,and hence to pull down the lever V to the position shown ing the bolt U,which engages the hub and them fromthe can.

I clutches the shaft'to the pulley. Thereupon the shaft revolves withthe pulley. At some suitable point during the revolution the pin .47.strikes the arm n and knocks out the hook on, whereupon, the plunger Zbeing free, the spring Z pulls up the lever V to its original position,so that its inclined end it stands ready to reengage the bolt U. At theend of the revolution the bolt U being carried around up this pin, andconsequently to push up the shell 7c and hook m, so that the latteragain takes over the plunger Z, so that the parts are ready to repeatthe operation when the operator shall next depress the treadle. Theaction of the pin 4% (or cam projection) in disengaging the hook minsures the unclutching and stoppage of the shaft at the end of onerevolution independently of whether the operator keeps the treadledepressed or not. Any other automatic clutch adapted when engaged tocouple the shaft to the pulley for one revolution and then automaticallydisengage it and stop the shaft may be applied in place of the one justdescribed.

My invention may be modified in mechanical details to a considerableextent without departing from its essential features, which arehereinafter set forth in the claims.

What I claim is 1. A can-seaming machine comprising a chuck and clampfor revolving a can, a pair of seamers movable toward and from the can,a cam having a rotative movement in'a single direction relatively to theseamers and adapted to make one continuous revolution to the seamingofeach can, and two rollersbearing against it at difiierent points in itscircumference and adapted to be successively acted upon by the samecam-surfaces, said rollers being connected to the respective seamerstocause the latter to move into contact with the can.

2; In a can-seaming machine, the combination of a clamp for revolvingthe can, seamers adapted to act against the can, a camhaving a rotativemovement in asingle directionrelatively to the seamers whereby tooperate the same, rollers mounted in the same plane and bearing againstthe periphery of said can at opposite sides thereof and connected to therespective seamers for forcing them into contact wlth the can, and meansfor retracting 3. In a can-seaming machine, the combination of acan-clamp, seamers, a single continuously-revolving cam, rollers mountedin the &

same plane, and bearing against opposite sides of said cam and connectedto said seamers for forcing them into contact with the can, and a singlespring acting against the respective rollers for pressing them towardsaid cam and for retracting the seamers.

4. In a can-seaming machine, the combination of an upright frame, across-bar fixed thereon, a seamer, a carriage for said seamer mounted onsaid cross-bar to slide thereon, a revolving cam, and a connection fromsaid cam to said carriage for moving the seamer into contact with thework.

5. In a can-seamii'ig machine, the combination of an upright frame, achuck carrying shaft mounted in said frame, a cross bar mountedtransversely of said frame, a carriage adapted to slide on said bar, .aseamer connected to said carriage, and means for advancing the carriageto bring the seamer into contact with the work.

6. In a can-seaming machine, the combina tion of an upright frame, achuck carrying shaft mounted in said frame, a cross bar mountedtransversely of said frame, a pair of seamers, carriages forsaid seamersadapted to slide on said bar, and means for advancing said carriages tobring the seamers into contact with the work.

7'. In a can-seaming machine, the combination of an upright frame, across-bar Q fixed thereon, a pair of seamers, carriages for therespective seamers mounted to slide on said crossbar, cam-drivenmechanism for moving said seamers into contact with the work, andadjustable connections between said mechanism and the carriages.

' 8. In a can-seaming machine, the combination of an upright frame,carriages sliding transversely thereon, plates vertically adjustable onsaid carriages, seamers carried by said plates, and means for movingsaid carriers to advance said seamers into contact with the work, and toretract them therefrom.

9. In a can-seaming machine, the combination of a seamer-carriagemounted to slide transversely, a lever fulcrumed to said carriage, aseamer carried by said lever, and means for reciprocating the carriageto bring the seamerinto and out of operative position.

10. In a can-seaming machine, the combination of a seamer-carriagemounted to slide transversely, a lever fulcrumed to said carriage, aseamer carried by said lever, a spring between said lever and saidcarriage tending to press said' seamer toward the work, and

means for reciprocating the carriage to move the seamer into and out ofoperative position.

11. In a can-seaming machine, the combination of a seamer-carriagemounted to slide transversely, a lever fulcrumed to said carriage, aseamer carried by said lever, means for adjusting the movements of thelever, a spring between said lever and said carriage tending to presssaid seamer toward the work, and means for reciprocating the carriage tomove the seamer into and out of operative position.

12. In a can-seaming machine, the combination of a horizontallymovingcarriage, a seamer carried thereby, a sliding block adjustable on saidcarriage, a cam, and a roller engaging said cam and connected to saidadjustable block for communicating the movement from the cam to thecarriage to move the seamer into and outof operative position, wherebyto admit of the adjustment of the seamer.

13. In a can-seaming machine, the combination of a seamer, a slidingcarriage carrying it, a cam, a roller engaging said can], a levercarrying said roller on one arm and engaging said carriage on the other,and a spring for pressing said roller against the cam.

1 1. In a can-seaming machine, a vertical shaft carrying a chuck, ashaft carrying the cam for advancing and retracting the seamer, acounter-shaft for driving both, belted from a small to a large pulleyfor driving the camshaft at a relatively low speed. and from a large toa small pulley for driving the vertical shaft at a relatively highspeed.

15. In a cairseaming machine, a vertical shaft carrying a chuck, ahorizontal shaft carrying the cam for advancing and retracting theseamer, a counter-shaft for driving both, a. loose pulley on saidhorizontal shaft belted through angle-belts to said vertical shaft, andbelts from a small pulley on the counter-shaft to a large pulley on thehorizontal shaft, and from a large pulley on the counter-shaft to saidloose pulley for driving the cam-shaft at a relatively low speed and thechuck at a relatively high speed.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

OTTO S. BEYER.

\Vitnesses:

FRED. H. McGAmn, H. E. PORTER.

